| 摘要 |
PROBLEM TO BE SOLVED: To provide a workpiece processing line capable of preventing errors such as processing a workpiece twice, as much as possible, and processing the workpiece properly and efficiently.SOLUTION: A workpiece processing line L includes detection means Sa, Sb that can detect the presence of an upstream workpiece mounting platform 4a and a downstream workpiece mounting platform 4b at each workpiece carrying in/out position P of multiple processing devices 1, when both of the upstream workpiece mounting platform having been delivered from the upstream side of the position P and the downstream workpiece mounting platform having been returned from the downstream side of the position P are present at the position P. At each processing device 1, a workpiece carrying in/out restriction state is cancelled and the state is changed to a workpiece carrying in/out permission state, on the condition that the processing of a workpiece W is completed and besides that, the detection means Sa, Sb detects that both of the upstream workpiece mounting platform 4a and the downstream workpiece mounting platform 4b are present at the workpiece carrying in/out position P.SELECTED DRAWING: Figure 2 |
